Amorphous porous silicon dioxide molded body used e.g. as filter material, heat insulating material, catalyst carrier material and as a preform for glass fibers comprises two layers each having an identical structure and composition

摘要

Amorphous porous silicon dioxide molded body comprises two layers each having an identical structure and composition. An independent claim is also included for a process for the production of a silicon dioxide molded body comprising pumping a dispersion containing silicon dioxide particles into an die casting mold so that the dispersion is moistened via an inner and an outer porous plastic membrane forming a silicon dioxide molded body.